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Finding the Fourth Proportional to 10,908.60, 16,367.70 and 5,062.20

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Solution

The fourth proportional to 10,908.60, 16,367.70 and 5,062.20 is: 7,595.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,908.60 : 16,367.70 = 5,062.20 : x
  2. Step 2: Convert to fraction form
    10,908.60/16,367.70 = 5,062.20/x
  3. Step 3: Cross multiply
    10,908.60x = 16,367.70 × 5,062.20
  4. Step 4: Simplify right side
    10,908.60x = 82,856,570.94
  5. Step 5: Solve for x
    x = 82,856,570.94/10,908.60
  6. Step 6: Final answer
    x = 7,595.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.